sound/soc/au1x/db1000.c

Source file repositories/reference/linux-study-clean/sound/soc/au1x/db1000.c

File Facts

System
Linux kernel
Corpus path
sound/soc/au1x/db1000.c
Extension
.c
Size
1438 bytes
Lines
60
Domain
Driver Families
Bucket
sound/soc
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * DB1000/DB1500/DB1100 ASoC audio fabric support code.
 *
 * (c) 2011 Manuel Lauss <manuel.lauss@googlemail.com>
 *
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-db1x00/bcsr.h>

#include "psc.h"

SND_SOC_DAILINK_DEFS(hifi,
	DAILINK_COMP_ARRAY(COMP_CPU("alchemy-ac97c")),
	DAILINK_COMP_ARRAY(COMP_CODEC("ac97-codec", "ac97-hifi")),
	DAILINK_COMP_ARRAY(COMP_PLATFORM("alchemy-pcm-dma.0")));

static struct snd_soc_dai_link db1000_ac97_dai = {
	.name		= "AC97",
	.stream_name	= "AC97 HiFi",
	SND_SOC_DAILINK_REG(hifi),
};

static struct snd_soc_card db1000_ac97 = {
	.name		= "DB1000_AC97",
	.owner		= THIS_MODULE,
	.dai_link	= &db1000_ac97_dai,
	.num_links	= 1,
};

static int db1000_audio_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &db1000_ac97;
	card->dev = &pdev->dev;
	return devm_snd_soc_register_card(&pdev->dev, card);
}

static struct platform_driver db1000_audio_driver = {
	.driver	= {
		.name	= "db1000-audio",
		.pm	= &snd_soc_pm_ops,
	},
	.probe		= db1000_audio_probe,
};

module_platform_driver(db1000_audio_driver);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("DB1000/DB1500/DB1100 ASoC audio");
MODULE_AUTHOR("Manuel Lauss");

Annotation

Implementation Notes